细嵌布高硫煤深度降灰脱硫的经济评价  

EVALUATION ON DESULFURIZATION AND DEASHING OF FINELY DISSEMINATED PYRITE IN COAL

作　　者：杨巧文[1] 支献华[1] 刘丽萍[1] 王祖讷[1] 

机构地区：[1]中国矿业大学北京校区化学与环境工程系,北京100083

出　　处：《煤炭转化》2000年第3期77-81,共5页Coal Conversion

摘　　要：采用先进的煤炭深度脱硫技术对细嵌布的四川磨心坡煤进行精选 ,得到满意的降硫和脱灰效果 .这种技术的关键是煤炭的超细磨、先进的分选技术和细粒煤的脱水 .首先对原料煤进行煤质和岩相分析 ,而后进行超细磨和深度分选研究 .用先进的煤炭物理深度分选技术可将煤的灰分降低到 6 % ,硫分降低到 1 .2 %以下 ,可燃体回收率为 6 4% .常规浮选配合部分浮选原料直接深加工可以获得综合降灰和脱硫效果 ;常规浮选配合尾煤深加工也可以获得综合降灰和脱硫效果 .This paper mainly describes the desulfurization of coal whose sulfur was finely disseminated. Selective oil agglomeration was adopted to process the MXP coal which has 1.6% sulfur and 16% ash The key technology of selective oil agglomeration are ultra fine grinding,advanced processing technology and fine particle dewatering.Owing to fine grinding,the finely disseminated pyrite can be separated from coal matrix. After a lot of experiments, the sulfur content in coal was reduced from 1.6% to 1.1% and the recovery was more than 60%.

关 键 词：细嵌布 脱硫 选择性聚团 高硫煤 降灰 经济评价 

分 类 号：TQ534.9[化学工程—煤化学工程] TD942.61[矿业工程—选矿]